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4 months agoYup looking at the components around and the layout, it does look like a quartz crystal, especially considering it’s right next to the microcontroller, and the 2 beige components above are the matching capacitors.
But yeah I’ve never seen a package with an open window. Maybe it’s an ultra high precision that has been tuned with lasers (usually done for patch antennas).
I thought this was going be a more technical oriented video about what I’d sound like with the performance of the sound chip and the speaker, and the cartridge memory size limitation, bit sad it isn’t :(